PDF malware analysis — malicious · f03eb2de994191d5

MALICIOUS

PDF

68.1 KB Created: 2020-12-27 04:41:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22

MD5: 491c8863926a0cc2db02e6c0d3d0a648 SHA-1: 1127d0c675c6c5ad8d422500ae701eeffd708d93 SHA-256: f03eb2de994191d5363b8d63bc9a80652e7033b5dd85b7a95f7dab2338c79cb5

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URL that, when clicked, leads to a query string related to job searching, likely a lure. No scripts were extracted, but the presence of an external URI and the ML detection strongly suggest malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://traffset.ru/wb?keyword=business%20office%20manager%20resume%20objective PDF link annotation
- https://static.s123-cdn-static.com/uploads/4461250/normal_5fcb555157f34.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4461219/normal_5fe299e043b7d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4383929/normal_5fe7cc667eb2d.pdfIn PDF document text
- https://ropugobefele.weebly.com/uploads/1/3/4/4/134445072/fibew.pdfIn PDF document text
- https://cdn.sqhk.co/salenasova/haB5fgg/sling_blue_and_orange_combo.pdfIn PDF document text
- https://zijunuriv.weebly.com/uploads/1/3/4/8/134892089/04799859648.pdfIn PDF document text
- https://fejiwapofiji.weebly.com/uploads/1/3/4/6/134699364/gadexozuridevem-difoxasa-wapidop-wejedovido.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/dukavunivifa/iphone_8_call_ringtone_free.pdfIn PDF document text
- https://s3.amazonaws.com/nilafafakem/laminator_sheets_kmart.pdfIn PDF document text
- https://s3.amazonaws.com/paxunu/boogie_woogie_movie.pdfIn PDF document text
- https://s3.amazonaws.com/zazelujeju/arya_samaj_books.pdfIn PDF document text
- https://s3.amazonaws.com/xidulumexi/2843695901.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000cad3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCAD3	5496 bytes
SHA-256: `bbcfae9cd4da59237de74b4b02f5bfb1ca10c5ebb6734316a0d57ffcbdfec22d`
`font_01_sfnt_off0000dd87.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDD87	11248 bytes
SHA-256: `2e454b93d3fc61ac0a6b230c8e9af80879d8e09a51191b916fb7b9d5f1349d2a`

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